body{
    background: #000000;
    color: #ffffff;
}
div{
    border: 1px solid #c20000;
    margin: 5px;
}
#left{
    width: 20%;
    height: 100%;
    float: left;
}
#container{
    width: 50%;
    height: 100%;
    float: left;
}
#right{
    width: 20%;
    height: 100%;
    float: left;
}